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    <meta name="description" content="openAgent - 智能对话助手，支持知识库问答" />
    <meta name="keywords" content="openAgent, AI, 对话, 知识库, 问答" />
    <meta name="author" content="openAgent Team" />
    <title>openAgent - 智能对话助手</title>
    
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    <!-- Loading styles -->
    <style>
      #loading {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: #f5f7fa;
        display: flex;
        justify-content: center;
        align-items: center;
        z-index: 9999;
        transition: opacity 0.3s ease;
      }
      
      .loading-spinner {
        width: 40px;
        height: 40px;
        border: 4px solid #e1e6ef;
        border-top: 4px solid #409eff;
        border-radius: 50%;
        animation: spin 1s linear infinite;
      }
      
      @keyframes spin {
        0% { transform: rotate(0deg); }
        100% { transform: rotate(360deg); }
      }
      
      .loading-text {
        margin-top: 16px;
        color: #606266;
        font-size: 14px;
        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
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      <div>
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        <div class="loading-text">正在加载 openAgent...</div>
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    <!-- App root -->
    <div id="app"></div>
    
    <!-- Main script -->
    <script type="module" src="/src/main.ts"></script>
    
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